Strange Problem with Mimo UM-720S

I got a mimo monitor this morning as a cheap alternative for my incar PC main display until i can get a decent enough screen, but i seem to be suffering a problem when using it with my incar PC.

I have tried it on 3 Windows 7 computers and it all works fine, however when i try to connect it with my car PC nothing comes up on the screen except an almost like conditioning sequence where the screen changes between black/white/check/grey/red/green/blue and just keeps going in rotation.

Does anyone know how to solve this problem

Car PC is using a Via Nehemiah CPU @ 1.33Ghz (overclocked), 512mb of RAM and is running Win XP Home.